Essential Knowledge and Associated Skills EKAS This describes the essential skills and knowledge and their level required for this unit Evidence shall show that knowledge has been acquired of drafting and laying out a street lighting system All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTDSA Power system street lighting system KS01-TDS33A Power system street lighting system Evidence shall show an understanding of the power system street lighting system to an extent indicated by the following aspects Draft and layout a power system street lighting system T Installation of overhead distribution conductors encompassing Standards codes legislation supply authority regulations and or enterprise requirements applicable to installing conductors and associated equipment Requirements for the use of overhead line construction manuals system diagramsplans and drawings material lists conductor size type and route length Constructions types and structures for distribution and sub transmission lines Types sizes and characterises of overhead conductors Resources for the stringing and maintenance of conductors types of low and high voltage overhead electrical conductor connections causes and effects of poor electrical connections reasons for and methods used to maintain standard phase sequencing removing repairing and replacing of damage conductors minimum clearances between overhead conductors and low and high voltage structures Techniques for conductor installation types and application of tools equipment and hardware methods of stringing tensioning and termination of low and high voltage conductors T Installation of poles and or structures and hardware encompassing Standards codes legislation supply authority regulations and or enterprise requirements applicable to installing poles and associated hardware Requirements for the use of enterprise construction manuals system diagramsplans and drawings characteristics and applications of different types of poles and associated hardware Techniques for installing poles and associated hardware types of installation equipmenttools excavation methods types of footingsfoundations types of attachments earthing systems clearances between conductors safe methods of erecting and stabling poles and or structures and cross arms Techniques for maintenance of poles and associated hardware stabilisation techniques for unstable poles methods of strengthen poles maintenance and replacement of high voltage insulators and cross arms T Procedures for installation and maintenance on public lighting structures and associated equipment encompassing Standards codes legislation supply authority regulations local government and or enterprise requirements pertaining to the installation and maintenance of public lighting systems and associated equipment Safety precautions specific to working on street lighting safe working practices and procedures safe clearances from LV and HV mains working at heights working in confined spaces permit to work systems and isolation procedures emergency response and rescue including First Aid etc Basic public lighting principles electromagnetic spectrum principles of colour behaviour of light factors that affect illumination Requirements for the use of enterprise construction manuals system diagramsplans and drawings street lighting circuits earthing system Types of tools and equipment used for installation and maintenance Types and function of lanternsLuminaireslamps control equipment poles and associated hardware used for street lighting HP mercury vapour LP and HP sodium vapour fluorescent quartzhalogen wood concrete steel composite choke boxes photoelectric cells time switches contactor boxes Types of lighting systems overhead and underground street lighting systems controlling and switching of lighting systems Techniques for the installation of street lighting systems Techniques for the maintenance of street lighting systems diagnosing of faults removing repairing replacement and cleaning of public lighting and associated hardware Application of specific testing equipment voltage detectors insulation resistance testers clampon ammeters continuity testers fault indictors Techniques for the inspection testing and commissioning of street lighting systems T Different types and function of distribution components encompassing CommonwealthStateTerritory and local government legislation Standards codes Commonwealth StateTerritory and local government legislation supply authority regulations and or enterprise requirements applicable to the use and application of distribution components Requirements for the use of overhead line construction manuals system diagramsplans and drawings Types function and characteristics of distribution components Safety policies and procedures precautions related to the handling and installing distribution components T Enterprise specific switching diagrams and drawing encompassing Types and application of enterprise specific switching drawings and documents wiring and schematic diagrams and switching symbols mechanical drawings dealing with switching operations project charts switching schedules graphs technical manuals and catalogues instructionwork sheets Interpretation of different system switching diagrams LV system switching diagrams DC traction supply sectioning diagrams HV transmission and distribution system symbols and feeder plans processes of updating switching diagrams T Power distribution network documentation encompassing Requirements for the use of manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Types and application of power distribution network documentation drawings and documents wiring and schematic diagrams drawings and switching symbols mechanical drawings dealing with the power distribution network project charts schedules graphs technical manuals and catalogues instructionworksheets sheets Interpretation of different diagrams and documentation on LV and HV systems overhead distribution extensions underground distribution extensions distribution substation street lighting system T Layout principles for overhead distribution encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to overhead distribution layout Requirements for the use of overhead line construction manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Methods in determining material equipment and tool lists components types and quantity required spacing of components such as equipment poles crossarms costings of items and components Purchasing and contractual arrangements to include a requirement to eliminate OHS hazards minimise risks and provide residual OHS risk information Determination of conductor size type and route length Resources needed for the stringing and maintenance of conductors Types of low LV and HV overhead electrical conductor connections Minimum clearances between overhead conductors and low LV andHV structures Estimation of the duration of overhead distribution extension project T Fundamentals of surveying for the purpose of producing an overhead or underground distribution extension encompassing Commonwealth StateTerritory and local government legislation Standards codes supply and aviation authority regulations and or enterprise requirements applicable to the surveying for an overhead and underground extension Techniques in measuring heights and distances Techniques in taking bearings angles of deviation using a compass Techniques in using a clinometer Techniques in recording and storage of data Requirements for the use of overhead line construction manuals system diagramsplans and drawings Techniques in plotting long spans measuring stick clinometer trundle wheel tapes correction for sloping ground distance across objects and range rods Techniques in pegging pole positions foot path alignments types of pegs pegs of other authorities and locating survey pegs T Fundamentals of computer aided drafting CAD for drafting and layout of distribution extension and upgrades encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to the drafting and layouts of distribution extensions and upgrades Types of computer hardware and software tools and equipment for the production of a draft and layout of distribution extension and or upgrade Techniques in storing and retrieving programs and files from the computer Identification and methods of retrieving and manipulating digital symbols designs layouts fonts and graphs stored in the computer Techniques in using the CAD package in following necessary commands and protocols in accordance with the operating instructions of the CAD software manufacturer Note Examples include using file structure menu utilisation system library usage data banking achieving file management and maintenance procedures Calculation of dimensions and drafting measurements using the computer Techniques in the preparation of preliminary sketches using the computer Techniques in using D computer graphics system and associated equipment to produce a distribution extension and or upgrade draft or layout Techniques to diagnosing basic faults in computer operation T Principles to light design layout encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to the light design principles Requirements for the use of street lighting system construction manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Types of tariffs and charges Types of street lighting components column types foundations brackets luminaries and mounting heights Types of electrical street lighting circuits types of supply lighting circuit and control circuit Fundamentals of lighting production electromagnetic spectrum visible and nonvisible radiation spectral energy distribution infrared ultraviolet radiationsafety incandescence and phosphorescence reflection and refraction Fundamentals of lighting concepts terms and units purpose of reflectors and diffusers Factors affecting external lighting design Calculation of light output Determining illuminance point to point method lumen method Determining rated life of luminaries Fundamentals of street lighting design Considerations for special lighting situations security lighting hazardous street locations and emergency lighting T Principles to layout and draft a street lighting system encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to street lighting system layouts and drafts Requirements for the use of street lighting system construction manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Methods in determining material equipment and tool lists components types and quantity required spacing of components such as equipment poles crossarms costings of items and components Purchasing and contractual arrangements to include a requirement to eliminate OHS hazards minimise risks and provide residual OHS risk information Determination of conductor size type and route length Determination of street lighting positions for optimum visibility and minimise traffic hazards Techniques in mounting and position of lights Resources needed for the installation of street lighting system Methods of pegging out of pole positions andor underground cable positions Minimum clearances between overhead conductors and low LVand HV structures Estimation of the duration of overhead distribution extension project |